Disk attachment for grain-drills.



No. 728,167. PATENTED MAY 12', 1903.

c. A. HARDY-.

DISK ATTACHMENT FOR GRAIN DRILLS.

APPLICATION FILED in. 7, 1903. no mmm. 2 snnn'rs-snnm-a.

THE Norms PETERS cc. PHOYo-LITMu. wuumcmu o c No. 728,167 PATENTED MAY12, l903. G. A. HARDY. I DISK ATTAUHMENTFOR GRAIN DRILLS;

APPLICATION rum) JAN. 7, 1903.

no MODEL. 2 SHEETS-SHEET 2.

"ATENT Patented May 12, 1903.

FFICE.

CLEMENT A. HARDY, OF MOLINE, ILLINOIS, ASSIGNOR TO THE FULLERMANUFACTURING COMPANY, OF EAST MOLINE, ILLINOIS.

DISK ATTACHM ENT FQ R' G RA-IN- DI RILLs.

SPECIFICATION forming part of Letters Patent No. 728 1 67, dated May 12,1903. Application filed January 7, 1903.: Serial llo. 13 8,166. (Nomodel.)

T0 at. whom it may concern: I

Be it known that; I, CLEMENT A. HARDY, a citizen of the United States,residing at Moline, in the county of Rock Island and State of Illinois,have invented a new and useful Disk Attachment for Grain-Drills, &c., ofwhich the following is a specification.

This invention relates to disk attachments for grain-drills and forother disk implements, such as cultivators, barrows, and seeders; and ithas for its object to provide an attach: ment of this class which shallpossess superior advantages in point of simplicity, durability, andgeneral efficiency." 7

In disk implements as heretofore constructed it has been difficult to sospacethe disks that the center pair of. opposing disks could be soadjusted as to meet the varying condr tions of soil and yet be closeenough together to permit the seed to be deposited at the same distancesapart as the other disks in the implement or to properly cultivate thestrip of ground between them and to leave proper clearance between themfor the passage of loose soil and trash. By my present invention I aimto so support the disks pivotally in a hanger as to permit them to beeasily adjusted at the proper pitch, to so interlock the pivotalsupports that the adjustment of both disks constituting the pair shallof necessity be simultaneous and of equal extent, and by which the diskswhen properly adjusted may be securely locked in the desired position.

With these and other objects in view my invention consists in theimproved construction, arrangement, and combination of parts, which willbe hereinafter fully described, and particularly pointed out in theclaims.

In the accompanying drawings, Figure 1 is a side elevation of adisk-supporting hanger constructed in accordance with my invention withthe disks supported therein, said view showing in transverse section'thesupporting-bar upon which the hanger is .mounted. Fig. 2 is a verticalsectional View taken axially through the disks. Fig. 3 is a sectionaldetail view taken on the line 3 3 in Fig. 1. Fig. 4 is a view similar toFig. 3, but showing the disk-carrying arms in a difierent approximatelyvertical position.

position. Figs. 5 and 6 are perspective details of the right and'lefthand disk-carrying arms. Fig.1 is aside elevation of the hanger, andFig. 8 isa frontview: of the same.

Corresponding parts in the several figures are indicated by similarnumerals of reference.

1 designates a supporting-bar, here illustratedas a tubular bar, whichforms a part of the machine or implement to which my invention isapplied and which is no part of the present invention.

,32- designates the hanger. This may be-described as consisting of acasing comprising a top pIate B'and'a bottom plate 4, connected by arear wall 5, which normally occupies an The top plate 3 extendsforwardly beyond the bottom plate 4:, audit is provided with anupwardlyextending transversely-perforated lug 6,form

ing a bracket, which is connected, by means of a bolt 7, with theforward end of an arm 8, the rear end of which has a boxing 9, wherebyit is mounted, as by means of a clip 10, upon the supporting-bar 1. Theboxing 9 has alug 11, connected by a brace 12 with a lug 13 upon therear side of the hanger. The top and bottom plates are provided withperforations for the-passage of pivotal bolts 14., and the projectingfront end of the top plate 3 is provided with additional perforationsfor the passage of the securing-bolts 15. A bolt 16, having springs 1718 coiled thereon, extends through the arm 8 and brace 12 in rear of thehanger, thus providing the necessary flexible connection.

The disk-supporting arms 19 and 20 are provided with outwardly-extendingspindles 21, which aretapered, as shown, and upon which the disks aremounted for operation. The spindles are hollow and are provided withupwardly-extending oil-channels 22, through which lubricant may besupplied. The under sides of said spindles ar'e also provided withopenings 23 for the passage of such lubricant to thebearings. \In theexample shown in the drawings the disks 24 are provided with hubs 25,provided on their inner sides with annular grooves 26, engaging annularflanges 27 upon the outer sides of Ice thedisk-carryingarms,formingperfectjoints, which prevent the entrance ofdirt into the bearings. The disks are mounted upon the spindles by meansof bolts 28 and washers 29, the heads of the bolts being seated upon theinner sides of the disk-carrying arms. The latter are provided at theirupper and lower ends with lateral inwardly-extending brackets 30 and 31and 30 and 31, the former of which, being the upper ones 30 and 30*, areextended forwardly to form handles 32, provided with segmental slots 33,to be engaged by the securing-bolts 15. The brackets 30 31 30 31 arealso provided with perforations 34 for the reception of the pivot-bolts14, whereby they are mounted in the hangers. The brackets 30 and 31 ofthe arm 19 are provided at their inner edges with notches 35 to engageteeth 36, projecting from the edges of the brackets 30 31 of the arm 20.It will thus be seen that when the said disk-carrying arms are mountedin the hanger in operative position they will be interlocked by means ofthe said teeth and notches, so that the adjustment of one is renderedimpossible without the simultaneous corresponding adjustment of theother.

The operation and advantages of this invention will be readilyunderstood from the foregoing description, taken in connection with thedrawings hereto annexed.

The method of assembling the parts will be clearly evident by referenceto Fig. 2, where it will be seen that the pivotal bolts 1t serve tomount the diskcarrying arms in the hanger. By reference to Figs. 3 and 4dilferent positions of said disk-carrying arms will be ascertained, andit is obvious that said arms may be equally well adjusted at pointsintermediate between the extremes shown in said figures. It is alsoobvious that by lengthening the slots 33 the range of adjustment may beincreased By tightening the nuts upon the adjusting-bolts 15 thediskcarrying arms may be retained securely at any desired adjustment.

I desire it to be understood that while I have in the foregoingdescribed the preferred form of my invention I do not necessarily limitmyself to the structural details herein set forth, but reserve the rightto any changes and modifications which may be resorted to within thescope of my invention and without departing from the spirit orsacrificing the utility of the same.

I have described my invention as being located in front of thesupporting-bar 1, which necessarily implies that the disks will bepushed in a forward direction by means applied to the said bar. It isobvious that the supporting-bar may without departing from my inventionbe disposed in front of the disks, which will thus be pulled instead ofbeing pushed. The changes necessary to effect this modification will beobvious to any ream? mechanic skilled in the art to which the inventionappertains.

Having thus described my invention, I claim 1. A device of the classdescribed, comprising a hanger having top and bottom plates,disk-supporting means mounted pivotally between said top and bottomplates, said supporting means being provided with outwardly-extendingspindles and with for wardly-extending arms having segmental slots, andmeans for connecting said slotted arms with the top plate of the hanger.

2. In a disk-supporting device, the combination with a casing ofdisk-supporting devices, each comprising a plate havingoutwardly-extending spindles and laterally inwardly extending armsprovided with coacting notches and projections, said arms having pivotalconnection with the top and bottom plates.

3. A disk-carrying device comprising a casing and disk-carrying meansmounted pivotally between the top and bottom plates of said casing andhaving outwardly-extending hollow spindles and upwardly-extendingoilchannels, said spindles being provided with openings for the escapeof the lubricant.

4. In a disk-supporting device, the combination of a casing having topand bottom plates, disk -supporting members mounted pivotally betweensaid top and bottom plates and having toothed connection with eachother, hollow spindles extending outwardly from said disk-supportingmembers and provided with upwardly-extending oil-channels and openingsfor the escape of the lubricant, and means for securing saiddisk-supporting members in adjusted position.

5. In a device of the class described, a hanger, flexible supportingmeans for said hanger,disk-carrying armshavingoutwardlyextendingspindles and inwardly-extending brackets mounted pivotally in saidhanger, said brackets being provided with interlocking teeth andnotches, and means for securing the disk-supporting elements at variouspoints of adjustment.

6. In a device of the class described, a hanger having top and bottomplates, the upper plate extended beyond the lower one, disk-supportingelements mounted pivotally between said plates and having interlockingteeth and notches, s'egmentally-slotted arms extending from the saiddisk-carrying elements and bolts connecting said arms adjustably withthe projecting top plate of the hanger.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

CLEMENT A. HARDY.

Witnesses:

D. H. LYoNs, E. P. LUoKLUM.

